RC Circuits A 2 k resistor is in series with a 0.015 F capacitor across a 15 kHz ac source. What is the magnitude of the total impedance and the phase angle? 73.4 and θ = –19.5° 707 and θ = –19.5° 2121 and θ = –19.5° 734 and θ = –38.9° 73.4 and θ = –19.5° 707 and θ = –19.5° 2121 and θ = –19.5° 734 and θ = –38.9° ANSWER DOWNLOAD EXAMIANS APP
RC Circuits In the complex plane, the number 14 – j5 is located in the fourth quadrant second quadrant third quadrant first quadrant fourth quadrant second quadrant third quadrant first quadrant ANSWER DOWNLOAD EXAMIANS APP
RC Circuits What is the angular difference between +j4 and –j4? 180° 30° 270° 90° 180° 30° 270° 90° ANSWER DOWNLOAD EXAMIANS APP
RC Circuits What is the value of the hypotenuse of a right triangle whose sides are 12 and 18? 3.46 21.63 4.24 2.16 3.46 21.63 4.24 2.16 ANSWER DOWNLOAD EXAMIANS APP
RC Circuits A 12 kΩ resistor is in series with a 0.02 μF capacitor across a 1.2 kHz ac source. If the current is expressed in polar form as I = 0.3 angle 0° mA, what is the source voltage expressed in polar form? 411.3 V 0.411 V 45.6 V 4.11 V 411.3 V 0.411 V 45.6 V 4.11 V ANSWER DOWNLOAD EXAMIANS APP
RC Circuits An ac circuit consists of a resistor and a capacitor. To increase the phase angle above 45°, the following condition must exist: R < XC R > XC R = 5XC R = XC R < XC R > XC R = 5XC R = XC ANSWER DOWNLOAD EXAMIANS APP
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